I was just wondering, do the standard blowguns release air all in one go or can they release air in several bursts? If it doesn't, are there any other things that can release air in several bursts?
Thanks in advance

I have a feeling this guy is making a semi-auto BB gun.
Just a blowgun, a compressor/tank and a barrel with a grav-feed.
You're better off making a vortex or cloud (vortexs are cooler xD)
look them up on the spudwiki. GO to the top of the page and click wiki.